Chapter 4. The Electric Double Layer

  1. Hans-Jürgen Butt,
  2. Karlheinz Graf and
  3. Michael Kappl

Published Online: 25 AUG 2004

DOI: 10.1002/3527602313.ch4

Physics and Chemistry of Interfaces

Physics and Chemistry of Interfaces

How to Cite

Butt, H.-J., Graf, K. and Kappl, M. (2003) The Electric Double Layer, in Physics and Chemistry of Interfaces, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527602313.ch4

Author Information

  1. MPI für Polymerforschung Mainz, Germany

Publication History

  1. Published Online: 25 AUG 2004
  2. Published Print: 26 SEP 2003

ISBN Information

Print ISBN: 9783527404131

Online ISBN: 9783527602315



  • electric double layer;
  • Poisson–Boltzmann theory;
  • diffuse double layer;
  • planar surfaces;
  • Grahame equation;
  • Stern layer


This chapter contains sections titled:

  • Introduction

  • Poisson–Boltzmann theory of the diffuse double layer

    • The Poisson–Boltzmann equation

    • Planar surfaces

    • The full one-dimensional case

    • The Grahame equation

    • Capacity of the diffuse electric double layer

  • Beyond Poisson–Boltzmann theory

    • Limitations of the Poisson–Boltzmann theory

    • The Stern layer

  • The Gibb's free energy of the electric double layer

  • Summary

  • Exercises